Carbureter.



PATBNTED JUNE 2, 1908.

H. T. THOMAS. GARBURETBP.. APPLIOATION FILED NOV.13, 1905.

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4 'v/ ATTORNEY Y r h# T 6,/ 4.00000 IW i my KB Y j Wwf/72% UNITED sTATEs PATENT oEEIcE.y

HORACE T. THOMAS, OF LANSING, MICHIGAN, ASSIGNOR TO REO CAR MICHIGAN, A CORPORATION OF MICHIGAN.

CO., OF LANSING,

CAEBURETER.

Specification of Letters Patent.

Patented June 2, 1908.

Applicatonled November 13, 1905. Serial No. 286,993.

tion, reference being had therein to the ac-.

companying drawings.

The improved carbureter forming the subject matter of this invention is of the type operating with a constant level of liquid hydrocarbon and the improvement has special reference to the improved means for feeding and vapoi'izing the hydro-carbon and for4 regulating. the admission of the gas to the engine, all as more fully hereinafter described and shown .in the vaccompanying drawings, in whichl Figure 1, is a vertical lcentral section of the apparatus; Fig. 2, is a horizontal section on line x-z Fig. 1, and Figs. 3 and 4 are vertis cal sections on a reduced scale on lines y-y and z-z respectively of Fi f. 2. Fig. 5 is an elevation of the inner end o the hollowvalve forming the mixing chamber.

'Referring to the drawings 1 indicates the float chamber and 2- an inlet connection into the float chamber through which it communicates with the hydro-carbon supply tank (not shown).

-3 is the float in the float chamber. v

4 is a stem guiding the iioat in the float chamber.

i 5 is the loa't valve carried on the upper end of the stem and controlling the admission of the hydro-carbon into thefloat chamber to maintain'the same at a constant level.

6 is a plunger guided in bearings in the top of thetank an adapted to positively depress the float when 1t is desired to fill the oat chamber with fluid-above the normal level.

tom of the loatchamber and closed at its further end by a screw plug .for cleaning theA passage.. 10 is a spraying nozzle leading up- Wardly from said passage into the air c amber to a height approximately with the normal level of the fluid in the fioatchamber and terminating seat. l

11 is the inlet into the Aair chamber. 12 is suitable air filter adapted to keep in a conioally enlarged valve out the dust from entering the air chamber.`

13 is a band securing the air filter to the inlet openin .f

14 is a holl chamber forming a mixing chamber.

15 is an interior flange forming the seat of the multi-ported valve.A

. 17 is a handle passingthrough the valve and through a slot 16 inthe casing andformingthe means for rotatably adjusting the valve.

18 is a hollow arm secured to the casing ,and forming the means of attaching the. carbureter in position.

19 is a ported diaphragm in the arm 18. 20 is a correspondingly ported diaphragm forming in connection `with the diaphragm 19 a register or valve for regulatin .the admisow multi-ported valve in the air sion of the gas from the mixing c amber into l nection therewith a register or'valve for regulating the admission of air 4into the mixing chamber.

24 is a port in the valve seat 15 above and concentric with th'e spraying nozzle.

25 1s a corresponding port'inithe valve 14. i

26 is an opening in the top of the casing in axial line with the spraying nozzle.

27 is a screw ca in said opening and provided with a notc ed rim 28.

29 is a spring dog adapted to engage with the notched rim to hold the screw cap in its adjusted position against accidental rotation.

30 1s a pin valve secured to the cap in axial line with the spraying nozzle, and controlling the .discharge from said nozzle, whereby the same will be produced in the form of a s ray and in, amounts which can be regulate by the rotary adjustment of the screw cap.

31 and 32 are slots or openings in the valve 14 to prevent the pin valve from-interfering with the adjustment of the valve between the open and closed positions thereof.

The parts being arrangedand constructed as shown and described, the operation is as'v follows The gasolene being maintained by the oat normally at a constant level rises in the spray nozzle approximately to the height of its discharge opening. The working ofthe engine creating a suction in the usual manner the eect of which is to draw air into Vthe mixing 4chamber the air will simultaneously draw'in a charge of gasolene from the spray nozzle. Owing to the action of the pin valve 30,. the gasolene will escape from the nozzle 1() in the form of a fine spray and both pass from the mixing chamber to the motor the air and .the gasolene being thus brought into intimate contact are carried into the, mixing chamber together. The valve 14 by means ofits port 25 controls the opening around the spray nozzle which leads into the mixing chamber and by means of the ort or ports 1n the diaphragm 20 controls t e size of opening through which the mixture has to and the operator by means of the lever 17 (which has suitable operating connection in reach of the operator) can by adjusting the valve thus varythe charges of air and hydrocarbonfand thereby control the operation of the engine ina very satisfactory manner. The ports in the end wall 22 of the valve admit a certain amount of air into the mixing chamber irres ective of the position of the valve 14 and t is air being admitted over and through the mixture after it is formed insures a perfect .vaporization ofthe hydrocarbonand these ports which remain constantly open can be regulated as to size of o ening by means of the regulating 'disk 23.

e adjustment of the screw-cap 27- regulatesthe amount of gasolene that will be sprayed from the nozzle as will be readily understood. Havin thus fully described my invention, what I c aim is 11. The combination with a casing of an air and a constant level float chamber formed therein, a hollow valve projecting within the said valve forming the mixing chamber and.

provided with an opening adapted to be registered With the opening in the seat of the valve. y

2. The combination with a casing forming an air and a oat chamber, of a hollow valve projecting Within the air chamber and pro 60 vided in its inner end with an air inlet port and in its outer end with a discharge-port, a seat for the valve provided with a circular opening, a spraying nozzle extending con- Icentricallyintosaid opening and supplying the hydrocarbon, and a corresponding port in the valve adapted to register -with said opening, said valve forming the mixing. chamber and provided with means for rotatorily adjusting it.

3. The combination with a casing forming an air and a constant level float chamber, the air chamber being provided with lateral inlet and outlet arms, a mixing chamber rotatorily adjustably seated in the outlet arm and projecting inwardly into the air'chamber, the casing being' rovided with inwardly projecting walls orming a seat for the mixing chamber within the air chamber, a spraying nozzle projecting upwardly in the air chamber against' the Aunderside of said seat, there being an opening in said seat concentric with the nozzle and a corresponding opening in the mixing chamber adapted to register therewith, and a discharge outlet in the outer end \of the mixing chamber.

'4. The combination with a casing forming an air and a constant level float chamber, the air chamber being provided with lateral inlet and outlet arms at right angles to each other, a cylindrical mixing chamberr'otatorily ad# vjustably seated vin the outlet arm and projecting inwardly into the air chamber, the casing being rovided with inwardly projecting walls orming a seat therefor within the air chamber, a spraying nozzle at the lbottom ofthe air chamber and projecting upwardly against theunderside of said seat,

there being a circular opening in said seat concentric wlth the spraylng nozzle and a corresponding openmg 1n the mixing cham- `ber, a discharge port in the outer end of the mixing chamber and air inlet ports in the inner end of said chamber.

' In testimony whereof 1^ aflix my signature in presence of two witnesses. HORACE T. THOMAS.

Witnesses:

E. 4T. PEER, GRETA LAYoox. 

